CA2770804A1 - A method for processing ash, and an ash processing plant - Google Patents

A method for processing ash, and an ash processing plant Download PDF

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Publication number
CA2770804A1
CA2770804A1 CA2770804A CA2770804A CA2770804A1 CA 2770804 A1 CA2770804 A1 CA 2770804A1 CA 2770804 A CA2770804 A CA 2770804A CA 2770804 A CA2770804 A CA 2770804A CA 2770804 A1 CA2770804 A1 CA 2770804A1
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Prior art keywords
ash
combustion
fluidized bed
flue gases
temperature
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Abandoned
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CA2770804A
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French (fr)
Inventor
Juhani Isaksson
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Valmet Power Oy
Original Assignee
Metso Power Oy
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Publication of CA2770804A1 publication Critical patent/CA2770804A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/30—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having a fluidised bed
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/48—Apparatus; Plants
    • C10J3/52—Ash-removing devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B49/00—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated
    • C10B49/16—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated with moving solid heat-carriers in divided form
    • C10B49/20—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated with moving solid heat-carriers in divided form in dispersed form
    • C10B49/22—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated with moving solid heat-carriers in divided form in dispersed form according to the "fluidised bed" technique
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/54—Gasification of granular or pulverulent fuels by the Winkler technique, i.e. by fluidisation
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/54—Gasification of granular or pulverulent fuels by the Winkler technique, i.e. by fluidisation
    • C10J3/56—Apparatus; Plants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00—Fluidised bed combustion apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
    • F23G5/14—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
    • F23G5/16—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion in a separate combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
    • F23G7/065—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel
    • H04B5/45—
    • H04B5/72—
    • H04B5/77—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/0946—Waste, e.g. MSW, tires, glass, tar sand, peat, paper, lignite, oil shale
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/16—Integration of gasification processes with another plant or parts within the plant
    • C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
    • C10J2300/1606—Combustion processes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/16—Integration of gasification processes with another plant or parts within the plant
    • C10J2300/1625—Integration of gasification processes with another plant or parts within the plant with solids treatment
    • C10J2300/1628—Ash post-treatment
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
    • C10J2300/1807—Recycle loops, e.g. gas, solids, heating medium, water
    • C10J2300/1815—Recycle loops, e.g. gas, solids, heating medium, water for carbon dioxide
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
    • C10J2300/1861—Heat exchange between at least two process streams
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2202/00—Combustion
    • F23G2202/10—Combustion in two or more stages
    • F23G2202/106—Combustion in two or more stages with recirculation of unburned solid or gaseous matter into combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2203/00—Furnace arrangements
    • F23G2203/50—Fluidised bed furnace
    • F23G2203/501—Fluidised bed furnace with external recirculation of entrained bed material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/30—Solid combustion residues, e.g. bottom or flyash
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
    • Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]

Abstract

In a method for processing ash, fly ash is separated from a product gas flow obtained from gasification of fuel, which fly ash is burned in fluidized bed combustion to reduce the carbon content of the ash. After this, the flue gases from the combustion are processed. In a first step, the ash is burned in fluidized bed combustion (fluidized bed reactor 1) at a temperature of not higher than 800°C to reduce the carbon content, and in a second step, the flue gases a burned in an independent combustion process (combustion chamber 7), the combustion conditions reaching the temperature of at least 850°C.

Description

A METHOD FOR PROCESSING ASH, AND AN ASH PROCESSING PLANT

The invention relates to a method for processing ash according to the preamble of claim 1. The invention also relates to an ash processing plant according to the preamble of claim 6.
One way of producing fuel is to gasify a carbonaceous raw material, wherein it becomes gas which can be burnt. Particularly popular raw materials include waste materials which are normally organic materials, such as various types of wood waste and package waste (for example, cardboard and paper). The material is also called recovered fuel.
The gasification normally takes place in a fluidized bed process at a high temperature under air-deficient conditions. The product gas obtained is suitable to be burned in, for example, a conventional power plant boiler.
Before its burning, the product gas produced in gasification has to be purified by removing various solids and other impurities. So-called fly ash separated from the product gas contains most of the heavy metals, chlorine and alkali metals of the raw material. The composition of the ash will depend on the raw materials gasified.
The ash contains soluble components which make it hazardous waste. Disposal sites are provided for ash fraction classified as hazardous waste. However, the ash obtained in purifying the gas produced by a gasifier has a high content of soot (10 to 40%) which complicates the final disposal of the ash, because the carbon content exceeds the allowed limit. Such ash can be subjected to special treatment at a hazardous waste disposal plant, but this is relatively expensive.
Finnish patent FI 110266 discloses a method for treating soot-containing solids of the product gas from gasification already at the gasification plant. In this method, ash having a high soot content and being separated from the product gas flow is introduced in a fluidized bed reactor acting as an oxidizer where it is burnt at a temperature of 800 to 900 C to oxidize the carbon to carbon dioxide. The combustion flue gases are redirected as secondary gasification gas to the gasifier. Before this, ash is separated from the flue gases.
However, such a solution to recirculate the flue gases is problematic, because the additional gas flow from the oxidization is rich in oxygen, which makes the control of the gasification process more difficult. Also, the capacity diminishes, because part of the capacity is taken by the flue gas flow which increases an inert flow through the gasifier.
It is an aim of the invention to present a method for processing ashes rich in soot but simultaneously for final processing of the flue gases produced by de-sooting (removal of carbon residues). To achieve this aim, the method according to the invention is primarily characterized in what will be presented in the characterizing part of the appended claim 1.
In the invention, the fly ash separated from the product gas of gasification is oxidized by fluidized bed combustion at a temperature of not higher than 800 C, and in a second step, the gases produced by fluidized bed combustion are burned at a temperature of at least 850 C in an independent combustion process, for example in a separate combustion chamber.
By means of the invention, the soot content in the gasification ash can be reduced to an allowable level without decomposing the chlorine compounds in the ash, and after the separation of the ash, the remaining gas can be burned at a high temperature under conditions required by the waste directives. The chlorides are not evaporated at the relatively low temperature of the fluidized bed combustion, but they are removed with the ash. The ash can be processed independently of the gasification process, for example when the gasification process is not running. Furthermore, the gasification process and the ash treatment process can be adjusted irrespective of each other.
In the following, the invention will be described in more detail with reference to the appended drawing which is a process chart of an ash processing plant.
The gasification process is known as such, and it will not be described in more detail. The raw material is normally so-called recovered fuel which includes various types of municipal waste and industrial waste, normally solid carbonaceous fuel suitable for energy production.
The hot fly ash separated from the flow of combustible product gas obtained from the gasification of the fuel is processed in a plant shown in the figure.
Normally, such a plant is located in the same power plant as the gasifier itself and the main boiler of the power plant for combustion of the product gas, to produce energy. The gasification process and the ash separated from it and supplied as raw material for the plant is illustrated with broken lines. This ash, having a high content of unreacted carbon in the form of soot that originates in the gasified fuel, is introduced with additional fuel into a fluidized bed reactor 1, in which the combustion takes place by means of oxygen-contain-ing air supplied into the reactor. Additional fuel is not necessarily needed, but the temperature required by the combustion can be reached solely by the combustible carbon contained in the ash. The fluidized bed reactor also contains solid bed material (sand, limestone, or the like), which can be added, if necessary. The fluidized bed reactor 1 is a circulating fluidized bed reactor with a return circulation for the bed material, formed by a cyclone 2 and a return pipe 3. The reactor is operated with air deficiency to reach an oxidation temperature between 600 and 800 C. Advantageously, the oxidation temperature is about 720 C.
The furnace of the reactor 1 is fully refractory-lined (thermally insulated);
in other words, it does not contain heat transfer surfaces which would absorb combustion heat. In the return circulation of bed material, it is possible to use a heat exchanger 4 for adjusting the oxidation temperature.
In the case of the figure, the fluidized bed reactor is a circulating fluidized bed (CFB) reactor. A bubbling fluidized bed (BFB) can also be used, if the ash can be made sufficiently coarse.
The coarser fraction of the ash is removed from the reactor 1 from below, in the form of bottom ash, and the finer fraction which is not separated in the cyclone 2 to the return circulation, is carried with the flue gases along a flue gas duct 5 to an ash separator 6 (cyclone) where it is separated, and the flue gases are led to a combustion chamber 7. In the combustion chamber, the gases are burned at a higher temperature which is momentarily (for at least 2 s) at least 850 C, measured at the flue gases, to achieve the conditions according to the waste incineration directive (WID). If necessary, support fuel, which may be natural gas or oil, is introduced into the combustion chamber 7 along a line 8. In the power plant, the combustion chamber 7 is an independent unit, separate from the main boiler, and the flue gases produced by it are discharged in the air after their purification.
Downstream of the combustion chamber 7, the flue gases are led into a flue gas boiler 9 where they are cooled by means of a heat transfer medium (for example, water or water vapour flowing in pipes). The flue gas boiler 9 may be integrated in the same boiler as the combustion chamber 7. The cooled flue gases are led along a conduit 10 to a final gas filter 11 which is a bag filter. At the end, there may also be other gas purification devices, such as a catalyst (for example NO, catalyst). The purified flue gases are led into a chimney 12 or the chimney of the main boiler of the power plant, or to a suitable point in the back pass of the main boiler. The flue gases of the ash processing plant and the flue gases of the main boiler of the power plant may also have common gas purifiers, wherein the gas is led along the conduit 10 to a suitable point in the back pass of the main boiler. Also, the gas filter 11 can be replaced by the filter of the main boiler.
The chart also shows the supply of auxiliary agents both into the flue gas duct 5 upstream of the ash separator 6 (arrow A) and into the conduit downstream of the cooler, upstream of the gas filter 11 (arrow B). These auxiliary agents may consist of solids with a coarser particle size than the particle size of ash to be separated, to facilitate the separation of ash.

Claims (10)

1. A method for processing ash, wherein fly ash is separated from a product gas flow obtained from gasification of fuel, which fly ash is burned in fluidized bed combustion to reduce the carbon content in the ash, after which the flue gases from the combustion are processed, characterized in that - in a first step, the ash is burned in fluidized bed combustion at a temperature of not higher than 800 C, to reduce the carbon content, and - in a second step, the flue gases are burned in an independent combustion process, the combustion conditions reaching the temperature of at least 850 C.
2. The method according to claim 1, characterized in that before the combustion process, fine ash material entrained in the flue gases of the fluidized bed combustion is separated from them.
3. The method according to claim 1 or 2, characterized in that the fluidized bed combustion takes place in a circulating fluidized bed (CFB).
4. The method according to any of the preceding claims 1 to 3, characterized in that after the fluidized bed combustion, the carbon residues constitute less than 5 wt-% of the amount of separated total ash.
5. The method according to any of the preceding claims, characterized in that the gas obtained after the burning of flue gases is purified together with flue gases from the main boiler of the power plant, in one or more purification steps.
6. An ash processing plant with a fluidized bed reactor (1) arranged to burn fly ash separated from the product gas flow obtained from gasification of fuel, characterized in that the flue gas duct (5) of the fluidized bed reactor (1) is led to a separate combustion chamber (7) for combustion of flue gases in an independent combustion process, and the combustion temperature of the combustion chamber (7) is adjustable to a higher temperature than the combustion temperature of the fluidized bed reactor (1).
7. The ash processing plant according to claim 6, characterized in that the flue gas duct (5) comprises an ash separator (6) for separating the ash fraction carried with the flue gases.
8. The ash processing plant according to claim 6 or 7, characterized in that the fluidized bed reactor (1) is a circulating fluidized bed (CFB) reactor.
9. The ash processing plant according to claim 6 or 8, characterized in that the furnace of the fluidized bed reactor (1) is fully thermally insulated.
10. The ash processing plant according to any of the claims 6 to 8, characterized in that downstream of the combustion chamber (7), a flue gas boiler (9) is provided, through which the flow of a heat transfer medium is led for cooling the flue gases.
CA2770804A 2011-03-14 2012-03-13 A method for processing ash, and an ash processing plant Abandoned CA2770804A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20115258 2011-03-14
FI20115258A FI124422B (en) 2011-03-14 2011-03-14 Method for ash treatment and ash treatment plant

Publications (1)

Publication Number Publication Date
CA2770804A1 true CA2770804A1 (en) 2012-09-14

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US (1) US8833278B2 (en)
EP (1) EP2500401A1 (en)
CN (1) CN102676231A (en)
BR (1) BR102012005735A2 (en)
CA (1) CA2770804A1 (en)
CL (1) CL2012000647A1 (en)
FI (1) FI124422B (en)
RU (1) RU2012109574A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI124206B (en) * 2012-09-13 2014-05-15 Valmet Power Oy Process for the treatment of ash and plant for the treatment of ash
CN103897743B (en) * 2014-03-28 2016-02-03 上海锅炉厂有限公司 Solid fuel classification gasification-burning double bed polygenerations systeme and method
CN105441131B (en) * 2015-11-10 2018-04-20 清华大学 A kind of method of coal gasification lime-ash oxidation and decarbonization ash content coproduction steam
RU2630021C1 (en) * 2016-06-07 2017-09-05 Федеральное государственное бюджетное учреждение науки "Институт химии твердого тела Уральского Отделения Российской Академии наук" Method for processing fly ash of thermal power stations
DK3516016T3 (en) * 2016-09-21 2021-02-22 Haldor Topsoe As Separator system for treating a gas from a biomass gasification unit
CN106238443B (en) * 2016-09-22 2018-07-10 新奥科技发展有限公司 A kind of processing method of two spin-off ashes
WO2019150580A1 (en) * 2018-02-05 2019-08-08 株式会社ユーリカエンジニアリング Circulating fluidized bed boiler plant provided with indirect heating-type gasification furnace
US20210238089A1 (en) * 2019-03-18 2021-08-05 Tokuyama Corporation Process for reforming the fly ash
KR102242172B1 (en) * 2019-07-11 2021-04-20 한국에너지기술연구원 Oxy circulating fluidized bed combustion apparatus for fly ash reburn and methods for operating

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3153091B2 (en) * 1994-03-10 2001-04-03 株式会社荏原製作所 Waste treatment method and gasification and melting and combustion equipment
US3847563A (en) 1973-05-02 1974-11-12 Westinghouse Electric Corp Multi-stage fluidized bed coal gasification apparatus and process
JPS5851989B2 (en) 1977-11-01 1983-11-19 工業技術院長 Coal gasification method
DE3113993A1 (en) 1981-04-07 1982-11-11 Metallgesellschaft Ag, 6000 Frankfurt METHOD FOR THE SIMULTANEOUS PRODUCTION OF COMBUSTION GAS AND PROCESS HEAT FROM CARBON-MATERIAL MATERIALS
DE3310534A1 (en) * 1983-03-23 1984-10-04 C. Deilmann AG, 4444 Bad Bentheim DEVICE FOR RECOVERING ENERGY FROM PYROLIZABLE, CARBONATED WASTE MATERIALS, ALTERNATING COMPOSITION
CN2136934Y (en) * 1992-09-07 1993-06-23 周瑞熊 Boiling combustion boiler with double-fluidised bed and double-step circulation
DE4235412A1 (en) * 1992-10-21 1994-04-28 Metallgesellschaft Ag Process for gasifying waste materials containing combustible components
JPH11294744A (en) 1998-04-14 1999-10-29 Ishikawajima Harima Heavy Ind Co Ltd Method and system for treating dust collected from gasification furnace
FI110266B (en) 1999-01-25 2002-12-31 Valtion Teknillinen A method for gasifying a carbonaceous fuel in a fluidized bed gasifier
US6808390B1 (en) * 1999-05-04 2004-10-26 Commonwealth Scientific And Industrial Research Organization Process for carbonizing wood residues and producing activated carbon
FI112952B (en) * 2001-12-21 2004-02-13 Foster Wheeler Energia Oy Methods and devices for gasification of carbonaceous material
ITGE20020096A1 (en) * 2002-10-17 2004-04-18 Cesare Saccani SYSTEM FOR HOT TREATMENT OF EXHAUST FUMES
JP3613347B1 (en) * 2003-10-09 2005-01-26 太平洋セメント株式会社 How to remove unburned carbon in fly ash
CN1318796C (en) * 2004-07-26 2007-05-30 中国科学院工程热物理研究所<Del/> Method for producing both gas and steam, and boiler of circulating fluid bed with pyrolysis vaporizer
FI20055237L (en) 2005-05-18 2006-11-19 Foster Wheeler Energia Oy Method and apparatus for gasification of carbonaceous material
CN100362084C (en) * 2005-10-25 2008-01-16 太原理工大学 Internal and external circulation coal gasification method and device
US20080078324A1 (en) * 2006-09-28 2008-04-03 Halfinger Jeffrey A Fluidized bed CVD arrangement
DE102009014410A1 (en) * 2008-03-31 2009-10-01 Etag Production Gmbh Waste treatment plant for generating electric energy from combustion gases, has gasifier oven with upper, middle and lower section in connection with gas condenser, in connection with turbine module
CN201497380U (en) * 2009-07-03 2010-06-02 邓湘革 industrial furnace smoke secondary combustion device

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BR102012005735A2 (en) 2013-07-02
CN102676231A (en) 2012-09-19
RU2012109574A (en) 2013-09-20
FI20115258A0 (en) 2011-03-14
EP2500401A1 (en) 2012-09-19
CL2012000647A1 (en) 2012-11-30
US8833278B2 (en) 2014-09-16
FI20115258A (en) 2012-09-15
US20120234217A1 (en) 2012-09-20

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